Battery module and battery pack including the same

Abstract

A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a module frame that wraps the battery cell stack and has an open part formed on the lower side; and an upper thermal conductive resin layer located between the upper surface of the battery cell stack and the module frame. The battery cell stack is exposed in the downward direction through the open part.

1 . A battery module comprising:
 a battery cell stack in which a plurality of battery cells are stacked in a first direction;   a module frame that wraps the battery cell stack and has an open part formed on a lower side; and   an upper thermal conductive resin layer located between an upper surface of the battery cell stack and the module frame,   wherein the battery cell stack is exposed in a downward direction through the open part.   
     
     
         2 . The battery module according to  claim 1 , wherein:
 the upper thermal conductive resin layer comprises a first upper thermal conductive resin layer and a second upper thermal conductive resin layer that are spaced apart from each other.   
     
     
         3 . The battery module according to  claim 2 , wherein:
 the battery cells comprise electrode leads that are protruded in a second direction, and   the first upper thermal conductive resin layer and the second upper thermal conductive resin layer are located apart from each other in the second direction.   
     
     
         4 . The battery module according to  claim 1 , wherein:
 the module frame comprises a ceiling part for covering the upper surface of the battery cell stack, and a first side surface part and a second side surface part each covering a side surface of the battery cell stack.   
     
     
         5 . The battery module according to  claim 4 , wherein:
 the module frame comprises a first extension part extending in parallel to a lower surface of the battery cell stack from one end of the first side surface part, and a second extension part extending in parallel to the lower surface of the battery cell stack from one end of the second side surface part.   
     
     
         6 . The battery module according to  claim 5 , wherein:
 the open part is formed between the first extension part and the second extension part.   
     
     
         7 . The battery module according to  claim 5 , wherein:
 the ceiling part, the first surface part, the second side surface part, the first extension part and the second extension part are integrally formed.   
     
     
         8 . A battery pack comprising:
 the battery module as set forth in  claim 1 ;   a pack frame for housing the battery module; and   a lower thermal conductive resin layer located between the battery module and a bottom part of the pack frame.   
     
     
         9 . The battery pack according to  claim 8 , wherein:
 the battery cell stack is in contact with the lower thermal conductive resin layer through the open part.   
     
     
         10 . The battery pack according to  claim 8 , wherein:
 the lower thermal conductive resin layer comprises a first lower thermal conductive resin layer and a second lower thermal conductive resin layer that are spaced apart from each other.   
     
     
         11 . The battery pack according to  claim 10 , wherein:
 the battery cells comprise electrode leads that are protruded in a second direction, and   the first lower thermal conductive resin layer and the second lower thermal conductive resin layer are located apart from each in the second direction.